The negative reviews there, just as with a good number of the negative reviews for nearly any product (software or otherwise) are written by people who can't tell their *censored* from a Hair curler and blame everybody else for it. These are the same people who phone support lines simply saying "my phone is broken, fix it" and refusing to give any of the most basic information, expecting the people on the other end to have some kind of magic button that makes everything work again. I mean, just look at some of the reviews.
2 to three character comments that barely even imply what their issue was. "Couldn't get it to work" is not the programs fault, and has nothing to do with the functionality.